Why you should slow down your brain’s ageing – and how to do it

Lately, my brain has felt decidedly ancient. I’m only in my 40s, but last week I completely blanked on the date of my wedding anniversary, forgot the name of a friend’s son and couldn’t seem to concentrate on any work.

So when I was asked to write a column for New Scientist all about the brain, one question immediately came to mind: how old is mine? Years of research show that organs such as our heart, kidneys and ovaries don’t all age…